the asteroid called 2012 da2014 will zoom pass us. that's below the orbit of satellite. the closest approach by a space raublg like that in more than a century. now, it poses no danger to us, but if it fell to earth, it could explode with the force of an atomic bomb. >>> a day's ordeal has finally come to an end for people on board the cruise ship triumph. nbc's mark porter is in mobile where he watched the ship come in. mark. good morning. what have you been hearing from passengers coming off of that ship? >> reporter: well, we're hearing that they're very glad to be on land, mara, as you can imagine. the passengers are all off the ship now. things were pretty quiet here. the ship arrived here about 10:15 eastern time tonight. we knew it was arriving because it was blowing its horns and passengers were cheering from the railing. the carnival ceo went on board to personally apologize to all the passengers. after that, they were allowed to leave. it took several hours for all the hours to get off the ship. some of them were met by friends and relatives in mobile who eithe